ACU-01B 3HNA024871-00102 Pulse logic module

   Selecting Station Address On the Advant Controller 400 Series the station number is specified in the CI520/CI522 data base element. The station address have no relation to the order of the stations along the bus. They merely represent physical addresses which are used to refer to specific stations. Restarting Advant Controller 400 Series When restarting a communication interface, the configuration stored in nonvolatile memory will be valid, and the communication interface will use the loaded parameters rather than the default parameters. Otherwise, there is no difference between starting the first time, and later.

LED Indicators on CI520

   When starting (or restarting) a CI520 communication interface, the LEDs of the front panel are handled as follows: 1. The red “FAULT” LED is on, the green “RUN” LED is off. 2. When the initialization is done and the relevant hardware checks are performed, the “FAULT” LED goes off indicating that the CI520 communication interface is ready to be set operational. 3. When it has been configured it is automatically set operational (by the CPU), which is indicated by turning on the green “RUN” LED.

Exchange of a CI520 

  In order to minimize the disturbance during exchange of a communication interface, for example in case of failure, the following procedure should be followed: 1. Reset the IMPL terminal on the CI520 data base element. 2. Remove the modem cable from the CI520 HW-module. 3. Change CI520 modules. 4. Connect the modem cable to the new CI520. 5. Set the IMPL terminal on the CI520 data base element The Advant Controller 400 Series will automatically detect that the communication interface has been exchanged, and reload the proper configuration into the new communication interface.Be sure the station number is not changed while exchanging CI520s. If the station number is changed the whole bus might need to be restarted